Music-leaf turner.



W. J. RIETPL MUSIC LEAF TURNER. APPLICATION FILED NOV. 20, 19I6. 1 ,297,0l 1 Patented Mar. 11, 1919.

2 SHEETS-SHEET I.

w.1, RIETH. MUSIC LEAF TURNER.

APPLICATION FILED NOV- 20. 1915i 1 ,297,01 1 Patented Mar. 11, 1919.

- 2 SHEETSSHEET 2. 6/? 6 4 k3; as flit 40 /////7/'///////77fl// I Q flu. Ii. 7

WILLIAM J. RIETH, OF VALLEY CITY, NORTH DAKOTA.

MUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented Mar. 11, 1919.

Application filed November 20, 1916. Serial No. 132,385.

To all whom it may concern:

Be it known that I, WILLIAM J. RIETH, a citizen of the United States, residing at Valley City, in the county of Barnes, State of North Dakota, have invented certain new and useful Improvements in Music-Leaf Turners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention is directed to improvements in music leaf turners, and has for its object to provide a device of this character so constructed that the player, can upon operating the foot pedal, successively turn the leaves.

A further object of the invention is to provide a device of this character having a swinging arm upon which is carried a mag net adapted to successively cohere with clips carried by the leaves so that the leaves can be turned successively upon actuation of a pedal.

With these and other objects in view, this invention resides in the novel features of construction, formation, combination and arrangement of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing, in which Figure 1 is a front elevation of the device.

Fig. 2 is a fragmentary transverse sectional view.

Fig. 3 is a top plan view showing the parts in their normal positions.

Fig. 4 is a similar view showing the parts after the leaf has been turned.

Fig. 5 is a side view showing the parts in their positions after turning the leaf.

Fig. 6 is a detail view of the pedal mechanism.

Fig. 7 is a sectional view through the stand showing a detail plan. I

Fig. 8 is a detail perspective view of the trip lever.

' Fig. 9 is a detail view showing the magnet in its relation to the plates.

Referring to the drawing 1 indicates the stand which has connected adjacent its upper ends an arm 2, said arm being disposed horizontally and is provided with guides 3 and 4, the purpose of which will appear later.

Rotatably engaged on the stand 1, and above the arm 2 is a drum 5, said drum having fixed thereto a bar 6 which is disposed horizontally and is pivotally connected with the stand 1. The bar 6 is provided with a recess 7 and a slot 8, and located in the re cess 7 is a disk 9, said disk having a stop 10 carried thereby. The disk 9 is fixed to the stand 1.

Pivotally mounted in. the slot 8 is atrip lever 11, said lever consisting of arms 12 and 13 which are formed integral with the body 14, said body having stops 15 and 16 formed thereon.

Fixed to the stand 1 is a sleeve 17, said sleeve having a lug 18 connected therewith, said lug being directed downwardly so as to be in the path of travel of the lever 19, said lever being pivotally connected at one end to the stand 1 and between the bar 6 and sleeve 17. The outer end of the lever 19 is connected to the arm 13 of the trip lever 11 by a coil spring 20, the purpose of which will appear later.

Having one end pivotally mounted in the slot 8 is a trigger 21, said trigger having pivotally connected thereto a pawl 22 which is adapted to coact with the stop 10 carried by the disk 9, and in a manner to be hereinafter described. The trigger 21 has connected thereto one end of a coil spring 23, the other end of which is connected to a post 24 carried by the bar 6.

One end of the bar 6 is provided with a head 25, and pivotally connected to the head 25 is a block 26, said block having connected thereto a rod 27. Adjustably connected to the rod 27 is a rod 28 the outer end of which has fixed thereto in any suitable manner a magnet 29, which is of conventional form. The rod 27 has attached thereto a vertical bar 30 the upper end of which is connected with the head 25 by a coil spring 31. The lower end of the bar 30 has connected thereto one end of a cord 32, the other end of said cord being connected to the arm 12 of the lever 11.

Windable on the drum 5 is a cord 33, said cord being passed through the guide 3 and has its lower end Windable on the drum 34 which is supported by the stand base 35, said drum having connected thereto a gear 35' which meshes with the rack 36 carried by the pedal 37, said pedal being pivotally supported by the bracket 38 mounted on the base 35. The cord 33 is passed around the pulley 39 which is supported adjacent the lower end of the stand 1, and as clearly shown in Fig. 6 of the drawing.

Also windable on the drum is a cord 40, the same being wound reversely with respect to the cord 33, and connected to the lower end of the cord 40 is a weight 41.

The music sheets A have connected thereto in any suitable manner metal plates B, of such size as to absorb all of the lines of force from the magnet 29, so that the magnet will influence only the plate with which it directly engages, (the detail view, Fig. 9, shows this construction) which are adapted to be engaged by the magnet 29 so that 1 when the rod 28 is swung from the left to right the leaf will be correspondingly turned. 4

Assuming that the device is in the position as shown in Fig. 1 and the magnet 29 is engaged with one of the plates carried by the leaf, pressure is applied to the pedal 37 thus causing the cord 33 to wind on the drum 34, whereupon the drum 5 will be rotated soas to swing the bar 6 to the left. As soon as the pawl 22 engages the stop 10 of the disk 9, the trigger 21 will be swung to the right until it disengages the stop 15, and since the lever 19 has been swung to the left under the action of the lug 18, the trip lever 11 will be rocked, thus pulling upon the cord 32, whereby the bar 30 will be drawn to the right thus causing the rod 27 to swing downwardly, and as this rod swings downwardly it is obvious that this downward movement will cause the magnet 29 to slide from engagement with the plate carried by the leaf just turned. The drum 5 is then rotated reversely under the action of the weight 41, and as soon as this reverse movement starts the spring 31 will swing the arm 27 to a horizontal position, which .it will assume so that the magnet 29 will again engage a plate on the next leaf after the arm 28 has swung to the limit of its movement to the right.

As shownin Fig. 4: the trigger 21 is engaged with a stop 16, and when this occurs the swinging movement of the trip lever 11 is limited in one direction. It is of course obvious that when the bar 6 is swinging to the right the pawl 22 will disengage the stop 10 and under the action of the spring 23 the trigger will swing to a position to again engage the stop 15. By providing Copies of this patent may be obtained for five cents the spring 20 the-trip lever 11 will be relieved of jars incident to the swinging of the lever 19 to its operative position, the tension of the spring being such as to shift the lever 11 so that the stops 15 and 16'will be successively engaged.

What is claimed is 1. A music leaf turner comprising a stand, a drum rotatable thereon, a bar pivoted intermediate its ends to said stand and swung about its pivot by the rotation of said drum, an arm pivoted to one end of said bar and normally in a horizontal position to engage a portion of a sheet of music, a lever pivoted to said stand, a rocker element pivoted to the other end of said bar, a resilient connection between said lever and rocker element, a connection be tween said rocker element and said arm for swinging the latter about its pivot when the rocker element is actuated, and means carried by the stand and engageable by said lever, when the bar is swung about its pivot, to actuate said rocker element.

2. A music leaf turner comprising a stand, a drum rotatable thereon, a bar pivoted intermediate its ends to said stand and swung about its pivot by the rotation of said drum, an arm pivoted to one end of said bar and engageable with a portion of a sheet of music, a lever pivoted to said stand, a rocker element pivoted to the other end of said bar, a resilient connection between said rocker element and lever, a connection between said rocker element and said arm for swinging same about its pivot when the rocker element is actuated, means engaging said rocker element for normally preventing actuation thereof, means carried by the stand and operable upon the last named means to release the same when said bar is swung about its pivot, and means carried by the stand and engageable by said lever, when said bar is swung about its pivot, to actuate said rocker element. F

In testimony whereof, I afiix my signature, in the presence of two witnesses.

XVILLIAM J. RIETH.

Witnesses:

WALTER Coor, J. H. S. THoMsoN.

each, by addressing the "Commissioner of Patents.

Washington, I). 0." 

